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LM-33

April 14, 2024

The LM-33 is a four-axle Soviet tram, produced by the Petersburg Tram Mechanical Factory (PTMF) from 1933 to 1939.

LM-33 "Americana"
LM-33 and LP-33 tram and trailer crossing the Staro-Nikolsky bridge in Saint Petersburg
ManufacturerPetersburg Tram Mechanical Factory
DesignerD.I. Kondratiev
Constructed1933–1939
Entered service1933–18 March 1979
Number built232
Number preserved3 (2 × LM-33; 1 × LP-44)
Capacity178 (49 seated, 129 standing)
Specifications
Car length15,000 mm (49 ft 3 in)
Width2,600 mm (8 ft 6 in)
Height3,318 mm (10 ft 10.6 in)
Wheelbase7,500 mm (24 ft 7 in) (between bolsters)
1,800 mm (5 ft 11 in) (between axles)
Maximum speed50 km/h (31 mph)
Weight22.2 t (24.5 tons)
Traction motors4 × PT-35 or 4 × DTI-60
Power output40 kW (54 hp) (PT-35) or 55 kW (74 hp) (DTI-60)
Power supplyDC-7B controller
Wheels driven8
Bogies2
Braking system(s)Pneumatic direct motion and hand-wheeled motorized shoe
Track gauge1,524 mm (5 ft)

History edit

In the early 1930s, D.I. Kondratiev and a group of Leningrad specialists visited America to learn about local developments. A new model of the Leningrad tram was derived from this research trip based on the Peter Witt design. The design was modified in accordance with Soviet domestic requirements; in particular, the width of the wagon was reduced. The first tram of this design was produced by PTMF. It was originally named MA (Mоторный Aмериканского типа), and its unpowered trailer was named PA (rus. ПА, Прицепной Aмериканского типa). The model quickly earned the nickname "American". Later for political reasons, the wagon names were changed to LM-33 (Leningradsky Motorny projekta 1933 goda) and LP-33 (Leningradsky Pritsepnoy projekta 1933 goda), respectively.

LM-33 and LP-33 were built between 1933 and 1939.

Operation edit

LM-33/LP-33 trains were operated in Leningrad from 1933 until March 18, 1979.[1]

Preservation edit

Two copies of LM-33 have survived in the electric transportation museum in Saint Petersburg: motor 4275 (undergoing restoration) and the loading platform at the LM-33 No. 4435 (awaiting restoration). An LP-33 trailer (number 4454) is also being restored.

See also edit

References edit

  1. ^ (in Russian). Archived from the original on 2007-02-24. Retrieved 2008-05-15.

External links edit

 
Wikimedia Commons has media related to LM-33.
  • (in Russian)
  • (in Russian)
  • LM-33 at site «piter-tram.de» (in German)

April 14, 2024
four, axle, soviet, tram, produced, petersburg, tram, mechanical, factory, ptmf, from, 1933, 1939, americana, tram, trailer, crossing, staro, nikolsky, bridge, saint, petersburgmanufacturerpetersburg, tram, mechanical, factorydesignerd, kondratievconstructed19. The LM 33 is a four axle Soviet tram produced by the Petersburg Tram Mechanical Factory PTMF from 1933 to 1939 LM 33 Americana LM 33 and LP 33 tram and trailer crossing the Staro Nikolsky bridge in Saint PetersburgManufacturerPetersburg Tram Mechanical FactoryDesignerD I KondratievConstructed1933 1939Entered service1933 18 March 1979Number built232Number preserved3 2 LM 33 1 LP 44 Capacity178 49 seated 129 standing SpecificationsCar length15 000 mm 49 ft 3 in Width2 600 mm 8 ft 6 in Height3 318 mm 10 ft 10 6 in Wheelbase7 500 mm 24 ft 7 in between bolsters 1 800 mm 5 ft 11 in between axles Maximum speed50 km h 31 mph Weight22 2 t 24 5 tons Traction motors4 PT 35 or 4 DTI 60Power output40 kW 54 hp PT 35 or 55 kW 74 hp DTI 60 Power supplyDC 7B controllerWheels driven8Bogies2Braking system s Pneumatic direct motion and hand wheeled motorized shoeTrack gauge1 524 mm 5 ft Contents 1 History 2 Operation 3 Preservation 4 See also 5 References 6 External linksHistory editIn the early 1930s D I Kondratiev and a group of Leningrad specialists visited America to learn about local developments A new model of the Leningrad tram was derived from this research trip based on the Peter Witt design The design was modified in accordance with Soviet domestic requirements in particular the width of the wagon was reduced The first tram of this design was produced by PTMF It was originally named MA Motornyj Amerikanskogo tipa and its unpowered trailer was named PA rus PA Pricepnoj Amerikanskogo tipa The model quickly earned the nickname American Later for political reasons the wagon names were changed to LM 33 Leningradsky Motorny projekta 1933 goda and LP 33 Leningradsky Pritsepnoy projekta 1933 goda respectively LM 33 and LP 33 were built between 1933 and 1939 Operation editLM 33 LP 33 trains were operated in Leningrad from 1933 until March 18 1979 1 Preservation editTwo copies of LM 33 have survived in the electric transportation museum in Saint Petersburg motor 4275 undergoing restoration and the loading platform at the LM 33 No 4435 awaiting restoration An LP 33 trailer number 4454 is also being restored See also editTrams in Saint PetersburgReferences edit Tramvajnyj poezd LM 33 4275 LP 33 4454 Amerikanka in Russian Archived from the original on 2007 02 24 Retrieved 2008 05 15 External links edit nbsp Wikimedia Commons has media related to LM 33 LM 33 at site Retro tramvaj Peterburgskaya klassika in Russian LM 33 at site Nizhegorodskij Tramvaj Trollejbus in Russian LM 33 at site piter tram de in German Retrieved from https en wikipedia org w index php title LM 33 amp oldid 1201495675, wikipedia, wiki, book, books, library,

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